Process osi making matches



PROCESS OF MAKING MATCHES Filed July 30, 1930 Fl ERESITING QLUTSONHEHTER.-

Patented May 19, 1931 PATENT orifice CLARE K. LIGHT, OF OSWEGO, NEWYORK, ASSIG'NOR, BY MESNE SSIO-r-NMENTS, TO

THE DAMOND MATCH COMPANY, A ClOBPORATION OF-MARYLAND PROCESS OF MAKINGMATCHS Appucatibn inea July so,

This invention relates to a process of making matches having splints ofpermeable combustible material; its principal object being to providefor the economical and ellicient treatment of the match splints withmaterial which is effective to limit the flame to a relatively smallportion of the splint whenl Y nisms.

ln carrying out the invention in the preferred way the match splints,projecting from and supported in spaced parallel relation by thecarrier, are treated with a mate-- rial which permits the burning of thesplints `when they are ignited yet prevents their glowing when the flameis extinguished.

yThis anti-glow material preferably consists of an ammonium phosphatesolution with i which the splints are impregnated, or of powderedammonium phosphate with which the exposed surfaces of the splints aredusted or coated. The free end'portions of the impregnated splints orthe coated splints are dipped toa suitable depth into molten wax, asparaffin, and they are then exposed to the atmosphere for a brieflinterval of time to allow the wax to set. This done, thesplints aredipped to a suitable depth in Va solution of material, such as ammoniumphosphate,

adapted to impregnate and render practically lire-proof the portions ofthe splints above the waxed or paraffined portions, and such material isthen effectually driven back from the waxed to the unwaxed portions ofthe splints by means of a hot fluid blast, as steam or hot air, which isprojected longitudinally of the splints against the free extremities ofthe waxed portions. Y

Thereafter such extremities are tipped 193D. r.Serial No. 471,631.

with any usual or approved ignitible comp-o sitio'n or compositions toform the match heads, whereupon the matches are conveyed through asuitable drying space, whence they are discharged from the carrier andpacked.

In the drawing, which is aA diagram of parts'of a match making machinedesigned to carry out my hereinbefore described proc- -wood and forciblyinserted inperforatio'ns in the carrier.

4ldesignates a sprayer located adjacent the cutter head 'and' adapted toproject uponand longitudinally of the splints borne by the carrier afine spray or mist of material effec-V tive to prevent the glowing ofthe splint material when a match has been ignited and the flameextinguished; y This material is preferably a concentrated solution ofphosphate ammonium, about 3.5 Baume, which `-is quickly absorbed by thesplints; but, if de'- sire'd, the material'may comprise pulverizedphosphate of ammonium which in a dry state adheres to` and forms a lightdust or coating onv the exposed surfaces of Vthe splints. Y f v V5designates 'a bath of molten par'ain, or the like, in which Athe lowerends of the depending splints, after they leave the sprayer,y areimmersed to a depth correspondingwith the desired inflammable area ofthe splints. If desired a suitable heater may be'interposed between thesprayer and the paraffin bath, in order to ensure the drying of the wetimpregnated splints before they are dipped inthe bath.

6 designates a bath of free-flowing lirerek ammonium, about 21.5 Baume,which is effective'to impregnate the exposed unparaffined portion ofeach individual splint.

The bath 6 is preferably of the kind illustrated in the Paridon PatentNo. 1,641,193, dated September 6, 1927, wherein the splints are rapidlyimmersed in the impregnating solution and then slowly removed therefromto obviate any liability of the formation and retention of globules ofliquid on the free extremities of the splints.

After leaving the bath 6 the splints are carried upward across the pathof a blast of hot fluid, as steam or hot air, which is projectedlongitudinally of the splints toward the carrier by means of a nozzle 7in a manner to drive the lire-resisting solution from the paraiiinedportions of the splints to and upon the unparaflined portions, and alsopositively to drive the solution from the free extremities of thesplints. This step is an important feature of my invention, as thepresence of the fire-resisting material on the parafin impairs theburning quality of the latter, while the presence of the solution at theextremities lof the splints additionally precludes the elficient dryingof the match composition in a reasonable time after the composition hasbeen applied tothe splints.

8 designates a composition containing vat equipped with a transfer roll9 by means of which match head composition is applied to the lowerparafiined ends of the depending splints afterthe splints have beensubjected to the action of the steam or air blast.

I claim- 1. A process of making matches comprising applying wax to aportion of a splint at one end of the latter, then applying afreeflowing fire-resisting material tosuch portion, then blowing thematerial from such portion to and upon the unwaxed part of the splint,and finally applying match composition to the free end of such waxedportion.

2. A process of making matches comprising applying wax to a portion of asplint at one end of the latter, then applying a free flowingfire-resisting solution to such portion, then forcibly projecting afluid upon cg and lengthwise o-f the waxed and unwaxed portions ofthesplints in a manner to drive the solution from the waxed to thc unwaxedportion of the splint, and finally applying match composition tothe freeend of the 1 waxed portion.

3. In a process of making matches whereof the splints have waxed andunwaxed portions and whereof the waxed portions are coated withfire-resisting material, the step f; of blowing said materiallongitudinally of with fire-resisting material, the step of projectingsteam upon and lengthwise of the splints against the free ends of thewaxed portions in a manner to drive the said material from the waxed tothe unwaxed portions of the splints.

5. In a process of making matches whereof the splints have waxed andunwaxed portions and whereof the waxed portions are coated withfire-resisting material, the step of projecting hot air upon andlengthwise of the splints against the free ends of the waxed portions ina manner to drive the material from the waxed to the unwaxed portions ofthe splints.

6. A process of treating rows of spaced apart match splints which areeach held at one end in and project from a suitable carrier, comprisingtreating the exposed surfaces of the respective splints with anantiglowing material, treating the free end portions of the said splintswith wax, dipping the splints in a lire-resistant solution, anddirecting a hot fluid blast longitudinally of the splints against thefree extremity of the waxed portions in a manner to drive the solutionfrom the waxed to the unwaxed portions of the splints, and applyingmatch composition to the free ends of the said waxed portions.

Signed at Oswego, in the county of Oswego i and State of New York, this18 day of July A. D. 1930.

CLARE K. LIGHT.

